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Showing 1–24 of 162 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Sleep Disorder; Excessive Somnolence Clear all
Completed Phase 1 Interventional

A Study to Evaluate the Efficacy, Safety, and Tolerability of E2086 Compared to Placebo and Active Comparator in Adult Participants With Narcolepsy Type 1

NCT06462404
View directory record Official record
Conditions
Narcolepsy Type 1 (NT1)
Interventions
E2086, E2086 Placebo, Active Comparator, Active Comparator Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
12
States / cities
Santa Ana, California • Miami, Florida • Macon, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2025 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 2 Interventional Results available

Clinical Outcomes in Narcolepsy and Cataplexy: An Evaluation of Reboxetine Treatment (CONCERT)

NCT03881852
View directory record Official record
Conditions
Narcolepsy, Cataplexy Narcolepsy, Excessive Sleepiness
Interventions
AXS-12 (Reboxetine), Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
14
States / cities
Birmingham, Alabama • Alameda, California • Santa Ana, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 4 Interventional Results available

Efficacy and Safety of Armodafinil for Adults With Excessive Sleepiness Obstructive Sleep Apnea/Hypopnea and Depression

NCT00518986
View directory record Official record
Conditions
Sleep Disorders, Obstructive Sleep Apnea, Major Depressive Disorder, Dysthymic Disorder
Interventions
armodafinil, placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
62
States / cities
Jasper, Alabama • Phoenix, Arizona • Tucson, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2013 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Cross-over Study of Armodafinil Treatment of Daytime Sleepiness Associated With Treated Nocturia

NCT02151253
View directory record Official record
Conditions
Nocturia, Daytime Sleepiness
Interventions
Armodafinil, Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 90 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 23, 2017 · Synced Jul 21, 2026, 4:27 PM EDT
Completed No phase listed Observational

A Web-based Observational Study of Patient-reported Outcomes in Adults With Narcolepsy

NCT02769780
View directory record Official record
Conditions
Narcolepsy
Interventions
Not listed
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Jul 21, 2026, 4:27 PM EDT
Terminated Phase 1 Interventional Results available

Study of MK-6552 in Participants With Narcolepsy Type 1 (MK-6552-004)

NCT06179407
View directory record Official record
Conditions
Narcolepsy
Interventions
MK-6552, Placebo
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
5
States / cities
Colorado Springs, Colorado • Brandon, Florida • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 3 Interventional Results available

Extension Study of the Safety and Efficacy of Armodafinil in the Treatment of Patients With Excessive Sleepiness

NCT00228553
View directory record Official record
Conditions
Excessive Daytime Sleepiness, Narcolepsy, Obstructive Sleep Apnea/Hypopnea Syndrome, Chronic Shift Work Sleep Disorder
Interventions
Armodafinil 100 to 250 mg/day
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
743 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
74
States / cities
Birmingham, Alabama • Phoenix, Arizona • Hot Springs, Arkansas + 64 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2013 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 3 Interventional Results available

"Twelve-week Study of the Safety and Efficacy of JZP-110 in the Treatment of Excessive Sleepiness in OSA"

NCT02348606
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
JZP-110, Placebo oral tablet
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
476 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
45
States / cities
Glendale, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 2 Interventional

An Open Label Study of NLS-2 (Mazindol Extended Release) in Subjects With Narcolepsy

NCT05055024
View directory record Official record
Conditions
Narcolepsy With Cataplexy, Narcolepsy, Narcolepsy Without Cataplexy
Interventions
Mazindol
Drug
Lead sponsor
NLS Pharmaceutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
22
States / cities
Birmingham, Alabama • Redwood City, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2023 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Not applicable Interventional Results available

Bright Light Therapy for Residual Daytime Symptoms Associated With Obstructive Sleep Apnea

NCT04299009
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Bright light therapy glasses
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Jul 21, 2026, 4:27 PM EDT
Completed No phase listed Observational

A Patient-Centric, Prospective, Observational, Non-Interventional Switch Study of XYWAV in Narcolepsy

NCT04803786
View directory record Official record
Conditions
Narcolepsy
Interventions
Transition from Xyrem to Xywav
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 3 Interventional

A Study to Assess the Long-term Efficacy and Safety of AXS-12 (Reboxetine) in Subjects With Narcolepsy (ENCORE)

NCT05113745
View directory record Official record
Conditions
Narcolepsy, Cataplexy, Excessive Daytime Sleepiness
Interventions
AXS-12 (reboxetine), Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
15 Years to 75 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
24
States / cities
Phoenix, Arizona • Boulder, Colorado • Colorado Springs, Colorado + 20 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 2 Interventional Results available

A 4-Week Study of the Safety, Efficacy, and Pharmacokinetics of JZP-110 [(R)-2-amino-3-phenylpropylcarbamate Hydrochloride] in Subjects With Parkinson's Disease and Excessive Sleepiness

NCT03037203
View directory record Official record
Conditions
Excessive Sleepiness, Parkinson Disease
Interventions
JZP-110, Placebo
Drug · Other
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
35 Years to 80 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
25
States / cities
Los Angeles, California • San Diego, California • Boulder, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2020 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 4 Interventional Results available

A Switch Study From High-Sodium Oxybate to Xywav to Evaluate Changes in Blood Pressure in Participants With Narcolepsy

NCT05869773
View directory record Official record
Conditions
Narcolepsy
Interventions
JZP258
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years to 70 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
31
States / cities
Culver City, California • Encino, California • Huntington Beach, California + 27 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Completed No phase listed Observational

Efficacy of the Dreem 3S Ambulatory Sleep Monitoring Device for the Evaluation of Narcolepsy

NCT06531876
View directory record Official record
Conditions
Narcolepsy Type 1, Hypersomnia, Sleep Disorder
Interventions
Dreem 3S recording
Device
Lead sponsor
Beacon Biosignals
Industry
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
4
States / cities
Fontana, California • Redwood City, California • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Recruiting No phase listed Observational

WAKIX® (Pitolisant) Pregnancy Registry

NCT05536011
View directory record Official record
Conditions
Pregnancy Related, Narcolepsy
Interventions
Pitolisant, Comparator Products
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
Female only
Enrollment
1,329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
1
States / cities
Morrisville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Recruiting Phase 2 Interventional

A Study to Evaluate the Efficacy and Safety of E2086 in Adults With Narcolepsy

NCT07493265
View directory record Official record
Conditions
Narcolepsy
Interventions
E2086, Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
17
States / cities
Santa Ana, California • Brandon, Florida • Medley, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Completed No phase listed Observational

Improving the Assessment of Hypersomnolence

NCT02884505
View directory record Official record
Conditions
Disorders of Excessive Somnolence
Interventions
Pupillometry, Psychomotor Vigilance Task, Auditory Evoked Potential, Hypersomnia Severity Index
Device · Behavioral · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 89 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Jul 21, 2026, 4:27 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Light Exposure to Treat Sleep Disruption in Older People

NCT00427323
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders, Hypersomnia
Interventions
light exposure
Procedure
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced Jul 21, 2026, 4:27 PM EDT
Recruiting Phase 3 Interventional

Clinical Assessment of Response in the Treatment of Depression With Daytime Sleepiness Using Solriamfetol

NCT07484217
View directory record Official record
Conditions
Major Depressive Disorder With Excessive Daytime Sleepiness Symptoms
Interventions
Solriamfetol 150 MG, Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
508 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
13
States / cities
Chino, California • Redlands, California • Walnut Creek, California + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 4 Interventional Results available

Efficacy and Tolerability of Armodafinil in Adults With Excessive Sleepiness Associated With Shift Work Disorder

NCT01080807
View directory record Official record
Conditions
Excessive Sleepiness
Interventions
Armodafinil, Matching Placebo
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
63
States / cities
Phoenix, Arizona • Tucson, Arizona • Hot Springs, Arkansas + 56 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2012 · Synced Jul 21, 2026, 4:27 PM EDT
Terminated Not applicable Interventional

Structured Physical Activity for Sleep Quality and Daytime Sleepiness in Patients With Parkinson's Disease

NCT01544465
View directory record Official record
Conditions
Parkinson's Disease, Poor Quality Sleep, Hypersomnia
Interventions
Structured Physical Activity, Sleep hygiene education
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
50 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 20, 2014 · Synced Jul 21, 2026, 4:27 PM EDT
Completed Phase 3 Interventional Results available

"A Long-Term Safety Study of JZP-110 in the Treatment of Excessive Sleepiness in Subjects With Narcolepsy or OSA"

NCT02348632
View directory record Official record
Conditions
Narcolepsy, Obstructive Sleep Apnea
Interventions
JZP-110
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
645 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
63
States / cities
Birmingham, Alabama • Glendale, Arizona • Scottsdale, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2019 · Synced Jul 21, 2026, 4:27 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep and Morning Wellbeing Study

NCT07311434
View directory record Official record
Conditions
Sleep, Relaxation, Stress, Daytime Sleepiness
Interventions
Sleep Supplement
Dietary Supplement
Lead sponsor
Athletic Greens International
Industry
Eligibility
22 Years to 59 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Jul 21, 2026, 4:27 PM EDT